Spring-loaded tip assembly to support simulated shielded metal arc welding

Patent metadata

Field	Value
Publication number	US-10997872-B2
Application number	US-201715696495-A
Country	US
Kind code	B2
Filing date	Sep 6, 2017
Priority date	Jun 1, 2017
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

Embodiments of systems, apparatus, and methods to support the simulation of a shielded metal arc welding (SMAW) operation are disclosed. One embodiment is a tip assembly that includes an elongate mock electrode tip having a proximal end, a distal end, and a locking sleeve near the proximal end. A compression spring is configured to interface with the proximal end of the electrode tip. A locking cup is configured to encompass the compression spring and the locking sleeve. A housing, having an orifice, is configured to receive the electrode tip, the compression spring, and the locking cup into an interior of the housing by accepting the distal end of the electrode tip through the orifice up to the locking sleeve. The locking sleeve and the locking cup are configured to be rotated with respect to each other to allow changing between a locked position and an unlocked position.

First claim

What is claimed is:

1. A tip assembly to support simulation of a shielded metal arc welding operation, the tip assembly comprising:
an elongate mock electrode tip having a proximal end, a distal end, and a locking sleeve near the proximal end;
a compression spring having a first end and a second end, wherein the first end is configured to interface with the proximal end of the electrode tip;
a locking cup configured to encompass the compression spring and the locking sleeve of the electrode tip; and
a housing having an orifice, wherein the housing is configured to receive the electrode tip, the compression spring, and the locking cup into the housing by accepting the distal end of the electrode tip through the orifice of the housing up to the locking sleeve, resulting in the compression spring, the locking cup, and the locking sleeve residing in an interior of the housing with a majority of the electrode tip protruding out of the housing, and
wherein the locking sleeve and the locking cup are configured to be rotated with respect to each other to allow changing between a locked position and an unlocked position.

2. The tip assembly of claim 1 , wherein the locked position holds the compression spring in a fully compressed state within the locking cup while holding the electrode tip in an immovable state with respect to the locking cup and the housing, for use in simulated shielded metal arc welding of a plate welding coupon.

3. The tip assembly of claim 1 , wherein the unlocked position puts the compression spring in a free state, allowing the compression spring to compress as the distal end of the electrode tip is pushed toward the housing, and allowing the compression spring to decompress to push the distal end of the electrode tip away from the housing, resulting in providing a tactile feedback to a student welder to simulate a feel of performing an actual shielded metal arc welding operation on a pipe as the electrode tip engages a pipe welding coupon during a simulated shielded metal arc welding operation.

4. The tip assembly of claim 1 , wherein the housing is configured to removably attach to a mock welding tool for use in a simulated shielded metal arc welding operation.

5. The tip assembly of claim 1 , wherein at least the distal end of the electrode tip is made of a material configured to mitigate slippage between the electrode tip and a welding coupon during a simulated shielded metal arc welding operation.

6. The tip assembly of claim 1 , wherein at least a portion of the compression spring is made of polyetherimide.

7. The tip assembly of claim 1 , wherein at least a portion of the electrode tip is made of polyoxymethylene.

8. A tip assembly to support simulation of a shielded metal arc welding operation, the tip assembly comprising: an elongate mock electrode tip having a proximal end, a distal end, and a sleeve near the proximal end; a compression spring having a first end and a second end, wherein the first end is configured to interface with the proximal end of the electrode tip; a pressure sensor transducer configured to interface with the second end of the compression spring to sense an amount of compression of the compression spring and to generate a signal indicating the amount of compression of the compression spring; a cup configured to encompass the pressure sensor transducer, the compression spring, and the sleeve of the electrode tip; and a housing having an orifice, wherein the housing is configured to receive the electrode tip, the compression spring, the pressure sensor transducer, and the cup into the housing by accepting the distal end of the electrode tip through the orifice of the housing up to the sleeve, resulting in the pressure sensor transducer, the compression spring, the cup, and the sleeve residing in an interior of the housing with a majority of the electrode tip protruding out of the housing, and wherein the sleeve and the cup are configured to be rotated with respect to each other to allow changing between a locked position and an unlocked position.

9. The tip assembly of claim 8 , wherein the signal indicating the amount of compression of the compression spring is representative of at least one simulated arc characteristic.

10. The tip assembly of claim 9 , wherein the at least one simulated arc characteristic includes at least one of an arc voltage, an arc current, an arc length, and an extinguished arc.

11. The tip assembly of claim 8 , wherein the locked position holds the compression spring in a fully compressed state within the cup while holding the electrode tip in an immovable state with respect to the cup and the housing, for use during a simulated shielded metal arc welding operation on a plate welding coupon.

12. The tip assembly of claim 8 , wherein the unlocked position puts the compression spring in a free state, allowing the compression spring to compress as the distal end of the electrode tip is pushed toward the housing, and allowing the compression spring to decompress to push the distal end of the electrode tip away from the housing, resulting in providing a tactile feedback to a student welder to simulate a feel of performing an actual shielded metal arc welding operation on a pipe as the electrode tip engages a pipe welding coupon during a simulated shielded metal arc welding operation.

13. A mock welding tool to support simulation of a shielded metal arc welding operation, the mock welding tool comprising:
a handle configured to be held by a student welder;
a trigger operatively connected to the handle and configured to indicate an active weld state to a welding simulator; and
a mock stick electrode having a tip assembly, wherein the tip assembly includes:
an elongate mock electrode tip having a proximal end, a distal end, and a locking sleeve near the proximal end,
a compression spring having a first end and a second end, wherein the first end is configured to interface with the proximal end of the electrode tip,
a locking cup configured encompass the compression spring and the locking sleeve of the electrode tip, and
a housing having an orifice, wherein the housing is configured to receive the electrode tip, the compression spring, and the locking cup into the housing by accepting the distal end of the electrode tip through the orifice of the housing up to the locking sleeve, resulting in the compression spring, the locking cup, and the locking sleeve residing in an interior of the housing with a majority of the electrode tip protruding out of the housing, and
wherein the locking sleeve and the locking cup are configured to be rotated with respect to each other to allow changing between a locked position and an unlocked position.

14. The mock welding tool of claim 13 , wherein the locked position holds the compression spring in a fully compressed state within the locking cup while holding the electrode tip in an immovable state with respect to the locking cup and the housing, for use in a simulated shielded metal arc welding operation on a plate welding coupon.

15. The mock welding tool of claim 13 , wherein the unlocked position puts the compression spring in a free state, allowing the compression spring to compress as the distal end of the electrode tip is pushed toward the housing, and allowing the compression spring to decompress to push the distal end of the electrode tip away from the housing, resulting in providing a tactile feedback to a student welder to simulate a feel of performing an actual shielded metal arc welding operation on a pipe as the electrode tip engages a pipe welding coupon during a simulated shielded metal arc welding operation

Assignees

• Lincoln Global Inc

Inventors

• Caponi Darren P
• Koshar Andrew S
• Chantry Bruce John

Classifications

• G09B19/24 Primary

  Use of tools · CPC title

• G09B9/00

  Simulators for teaching or training purposes (for the use of weapons F41; computing aspects G06; {protocols for games, networked simulations or virtual reality H04L67/131}) · CPC title

• B23K9/26

  Accessories for electrodes, e.g. ignition tips · CPC title

• B23K9/18

  Submerged-arc welding · CPC title

• B23K9/173 Primary

  and of a consumable electrode · CPC title